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BS 978-2:ADDENDUM NO. 1:1959
BS 978-2:ADDENDUM NO. 1:1959 Gears for instruments and clockwork mechanisms. Cycloidal type gears. Double circular arc type gears
standard by BSI Group, 05/15/1959
Reduced price!
M00017792
New product
Full Description
Basic rack tooth shape and modules from 0.150 mm to 0.700 mm inclusive. Limits of tolerance for tip diameter, pitch, tooth thickness, profile, axial and radial run-out and centre distance; cutters for pinions with from six to twelve teeth.Cross References:
BS 978:Part 2
BS 2519
